<template>
  <div class="dashboard-container">
    <div class="app-container">
      <!-- 靠右的按钮 -->
      <page-tools>
        <template v-slot:after>
          <el-button type="primary" size="small" @click="addPermission(1,'0')">添加权限</el-button>
        </template>
      </page-tools>
      <!-- 表格 -->
      <!-- 显示树形结构时，需要加上row-key -->
      <el-table border :data="list" row-key="id">
        <el-table-column align="center" label="名称" prop="name" />
        <el-table-column align="center" label="标识" prop="code" />
        <el-table-column align="center" label="描述" prop="description" />
        <el-table-column align="center" label="操作">
          <!-- 使用作用域插槽来获取到type(item.row.type) -->
          <template v-slot="item">
            <!-- 添加按钮只在访问权的层级显示，当type为1时才显示 -->
            <el-button v-if="item.row.type===1" type="text" @click="addPermission(2,item.row.id)">添加</el-button>
            <el-button type="text" @click="editPermission(item.row.id)">编辑</el-button>
            <el-button type="text" @click="delPermission(item.row.id)">删除</el-button>
          </template>
        </el-table-column>

      </el-table>
    </div>
    <!-- 放置一个弹层 用来编辑新增节点 -->
    <el-dialog :title="`${showText}权限点`" :visible="showDialog" @close="cancelBtn">
      <!-- 表单 -->
      <el-form ref="permissionForm" :model="formData" :rules="rules" label-width="120px">
        <el-form-item label="权限名称" prop="name">
          <el-input v-model="formData.name" style="width:90%" />
        </el-form-item>
        <el-form-item label="权限标识" prop="code">
          <el-input v-model="formData.code" style="width:90%" />
        </el-form-item>
        <el-form-item label="权限描述">
          <el-input v-model="formData.description" style="width:90%" />
        </el-form-item>
        <el-form-item label="开启">
          <el-switch
            v-model="formData.enVisible"
            active-value="1"
            inactive-value="0"
          />
        </el-form-item>
      </el-form>
      <el-row slot="footer" type="flex" justify="center">
        <el-col :span="6">
          <el-button size="small" type="primary" @click="okBtn">确定</el-button>
          <el-button size="small" @click="cancelBtn">取消</el-button>
        </el-col>
      </el-row>
    </el-dialog>
  </div>
</template>

<script>
import { getPermissionList, delPermission, getPermissionDetail, updatePermission, addPermission } from '@/api/permission'
import { tranListToTree } from '@/utils'
export default {
  name: 'Permission',
  data() {
    return {
      list: [],
      showDialog: false,
      formData: {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        type: '', // 类型 该类型 不需要显示 因为点击添加的时候已经知道类型了
        pid: '', // 因为做的是树 需要知道添加到哪个节点下了
        enVisible: '0' // 开启
      },
      rules: {
        name: [{ required: true, message: '权限名称不能为空', trigger: 'blur' }],
        code: [{ required: true, message: '权限标识不能为空', trigger: 'blur' }]
      }
    }
  }, computed: {
    showText() {
      return this.formData.id ? '编辑权限' : '新增权限'
    }

  },
  created() {
    this.getPermissionList()
  },
  methods: {
    async getPermissionList() {
      this.list = tranListToTree(await getPermissionList(), '0')
    },
    delPermission(id) {
      this.$confirm('确认删除该权限点吗？').then(
        () => { return delPermission(id) }
      ).then(() => {
        this.$message.success('删除成功')
        // 重新拉取数据
        this.getPermissionList()
      })
    },
    /**
     * @param {*} type  访问权的type=1 其他type=2
     * @param {*} pid   pid表示当前数据父节点的表示
     */
    async addPermission(type, pid) {
      this.formData.type = type
      this.formData.pid = pid
      this.showDialog = true
    },
    async okBtn() {
      try {
        await this.$refs.permissionForm.validate()
        if (this.formData.id) {
          await updatePermission(this.formData)
        } else {
          await addPermission(this.formData)
        }
        //  提示消息
        this.$message.success('新增成功')
        this.getPermissionList()
        this.showDialog = false
      } catch (error) {
        console.log(error)
      }
    },
    cancelBtn() {
      this.formData = {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        type: '', // 类型 该类型 不需要显示 因为点击添加的时候已经知道类型了
        pid: '', // 因为做的是树 需要知道添加到哪个节点下了
        enVisible: '0' // 开启
      }
      this.$refs.permissionForm.resetFields()
      this.showDialog = false
    },
    async editPermission(id) {
      this.formData = await getPermissionDetail(id)
      this.showDialog = true
    }
  }
}
</script>

<style>

</style>

